baber/WOPTO huggingface dataset:
Patent DE-2827510-A1 (DE)
Title: Prepn. of co:polyether glycol! with terminal ester gps. - by copolymerising THF with alkylene oxide or cyclic acetal using (co)polymer of unsatd. monomer(s) as catalyst
Inventor: PRUCKMAYR GERFRIED
IPC: C08G65/26
Filed: 1978-06-22
Abstract: A copolyether glycol with terminal ester gps. is prepd. by reacting (A) THF with (B) an alkylene oxide contg. a 2-3C ring, or with a cyclic acetal of formula: (where n is 2-4; X and X1 are H, or 1-4C alkyl) in the presence of (C) a catalyst, and (D) a cpd. which can give an acylium ion R'-C +=O (where R' is H or hydrocarbon radical), esp. acetic anhydride. The catalyst is (a) a homopolymer of an ethylenically unsatd. monomer contg. gps. such that the final polymer contains the gps. (where represents the polymer chain or a chain segment; Z is H, 1-10C aliphatic or aromatic hydrocarbon radical, or halogen; D is as Z or a polymer chain segment; X and Y are H, halogen, 1-10C aliphatic or aromatic hydrocarbon radical, >=1 being F; R is a linear or branched gp. with a =40C principal chain); or (b) a copolymer of (a) with >=1 other ethylenically unsatd. monomer. The (co)polymer has an equiv. wt. of 950-1500 pref. 1000-1300 and dissolves at = about 5 wt.% in the reaction mass at the temp. of reaction. The copolyether glycol with terminal ester gps. can be converted to copolyether glycol which is used in the prepn. of polyurethanes.
Patent DE-2830663-A1 (DE)
Title: Solventless recovery of carotenoid(s) from citrus fruit - by extracting oil mechanically, winterising, removing limonene, then vacuum distilling, useful as food colourants
Inventor: JOHNSON JOSEPH DONALD
IPC: A23L5/44
Filed: 1978-07-12
Abstract: Carotenoids (I) are recovered from citrus fruits by first mechanically extracting oil from the flavedo (coloured outer skin) of the fruit, then winterising to remove sterols and other unwanted waxes. The dewaxed oil is then evapd. to remove limonene (II) and the oil then distilling in vacuo to separate (I) from the remaining constituents. Pref. mechanical extraction comprises rupturing the flavedo while simultaneously spraying with water to emulsify the oil. The emulsion is then centrifuged. The dewaxed oil is evapd. until (I) concn. is increased >=15, pref. 20-30 times, esp. at 65-75 degrees C/15-20 mm Hg. (I) are food colourants. No solvent is used so that contamination of the prod. is avoided.
Patent DE-2832401-A1 (DE)
Inventor: SCHMIDT HERIBERT
IPC: B01D19/00
Filed: 1978-07-24
Abstract: 1. A liquid seal pump arrangement for sucking off gaseous acid anhydrides and hydrogen halides, in which oil is used as working liquid which can be recirculated to the pump by way of a following liquid separator, characterized in that the oil (21) of the pump, which latter is made of material which is not resistant to acid, is led through a degasifying device (4).
Patent DE-2833113-A1 (DE)
Title: Emergency light with evenly-distributed intensity on ground - uses specially-curved reflector, transparent scattering plate and aperture ring
Inventor: WILLING ACHIM DIPL-ING DR-ING
IPC: F21V5/00
Filed: 1978-07-28
Abstract: The light source (2), e.g. discharge or incandescent lamp, is located in front of a curved reflector (3) shaped so that light intensity is equal at all points within the illuminated ground area. Outside this area, the intensity falls sharply, being due solely to scattered light. this equal distribution of intensity is independent of the light's distance from the area it is illuminating. A transparent cover (5) may be located in front of the light source to enhance equal intensity distribution. This scatterer may be further supplemented by additional reflectors or by lenses.
Patent DE-2834246-A1 (DE)
Title: Perforating machine for strips of material - has roller with perforating tools, and backing rollers applying pressure
Inventor: KALWAR KLAUS
IPC: B26F1/10
Filed: 1978-08-04
Abstract: The machine consists of a frame (1), with a driven rotating tool roller (2) with several perforating tools (3). The roller has two associated backing rollers (4, 5) diametrically opposite to each other, which are adjustably held in the frame, and which has a cover of wearable material. The material strip (23) is passed over guide rollers (24, 26, 27, 28) within a frame (29a). The frame may be pivoted about an axis (29), extending parallel to that of the tool roller, and may be locked via an adjusting element. Polishing elements are associated with the backing rollers.
Patent DE-2839499-A1 (DE)
Title: Fireproof door closure for large building - comprises elastic and flexible fireproof fabric mounted within metal frame
Inventor: HOELTER HEINZ ING GRAD
IPC: E06B5/16
Filed: 1978-09-11
Abstract: The fireproof closure has an insulation layer consisting of a fabric of ceramic or glass fibre attached to a metal frame and covered by facings. The insulation layer may consists of sheets of fabric made of titanium-treated ceramic or glass fibre joined together by needlelike fibres of similar material extending through an intermediate layer of fireproof particulate material. The multi-layer fabric may also be used as a fire-fighting blanket. The fire-resistant properties of the door can be improved further, if the insulation layer comprises at least two fabric layers. Those fabric layers are specially linked or felted with each other through a granular heat-insulating material. The thus formed needle-like fibres hold the layers together and prevent eht granular material from shifting.
Patent DE-2839584-A1 (DE)
Title: Self aligning ball bearing plummer block - has spring loaded spherical faced collar on spindle, sealing inside housing
Inventor: MOTSCH ALFONS ING GRAD
IPC: F16C33/76
Filed: 1978-09-12
Abstract: The self aligning bearing for a shaft (7) running on ball bearings (8), has an outer race with a convexly rounded surface which can slide round the concave surface of the bearing housing (1) and cap (2) when the shaft tilts. One end of the housing is fitted with a cup shaped dust cap (9) and the other carries a seal (11) with a spherical sealing face. The head having the sealing face is fitted over the shaft, and has a recess for a sealing ring (13). The outer end has a flange (15) which retains a coil spring, the smallest turn fitting against this flange, and the largest turn fitting into a recess in the outside face (18) of the housing. This gives a good seal for all angular positions of the shaft.
Patent DE-2841005-A1 (DE)
Title: Plastics flat solar energy collector - comprises flanged casing, absorber, and heat-transfer facility and flanges serving to overlap adjacent collectors or roofing tiles
Inventor: PINGEL KLAUS-ERHARD
IPC: F24S10/50
Filed: 1978-09-21
Abstract: Plate-shaped solar collector comprises a box-type casing with a top screen layer transparent to sunlight; a spaced-apart absorber surface defining, together with the screen layer, an enclosed space; and a pipeline for a heat-carrying fluid, in heat-conductive connection with the absorber surface. The casing has 2 flanges each of which overlaps an adjacent solar collector or some roofing element, much like roofing tiles laid in known manner. The collector, as claimed is made of plastics material, except the absorber layer. The plastics is pref. a casting resin. The absorber surface is pref. of eloxated Al.
Patent DE-2841589-A1 (DE)
Title: Capping device for wine main tip - has cutter blade driven via motor and return spring
Inventor: PIEROTH OTTO
IPC: A01G3/04
Filed: 1978-09-25
Abstract: The device consists of a cutter beam with an oscillating cutter blade and is fitted to a mobile support. The cutter blade is driven via a motor with a connecting rod at the bottom end, in conjunction with a return spring at the top end. The two cutter beams are integral via a suitably shaped bend. The return spring is fixed to the horizontal cutter beam and is connected with the cutter blade via cable passed over a roller.
Patent DE-2849510-A1 (DE)
Title: Brush with several bristle tufts offset relative to each other - is mfd. by positioning member on machine for correct alignment
Inventor: ZAHORANSKY RAINER
IPC: A46D3/04
Filed: 1978-11-15
Abstract: The brush manufacturing machine has direction guides (14), for the bristle tufts with alignment sections (47) located in the operating position near the top of one of the brush bodies (10) which are to be fitted with the tufts. These alignment sections (47) have a position corresponding to the intended position of each tuft (3) relative to the brush body (10). As the tufts (3) pass along to the brush body (10) they are automatically and continuously directed into the position in which they are to be subsequently fastened to the brush body. These direction guides can be placed comparatively close together wo that even brushes having comparatively compact bristle tufts can be simply manufactured.
Patent DE-2853871-A1 (DE)
Title: Heat treatment of cast iron, esp. nodular cast iron - where controlled cooling results in mechanical properties comparable with those of steel
Inventor: MUEHLBERGER HORST DIPL PHYS DR
IPC: C21D5/00
Filed: 1978-12-13
Abstract: The iron is heated for 1/4.-5 hr., esp. for 15-40 mins. at min. 730 degrees C, esp. at 730-920 degrees C; and is then cooled in less than 20 mins. to max. 600 degrees C, esp. to 300-600 degrees C in a heated bath. In the case of nodular cast iron, the pref. treatment consists of allowing the casting to solidify and then taking it out of the mould at 730-920 degrees C, followed by cooling as above. The invention improves the mechanical properties of the iron, so it is esp. suitable for pistons and cylinders used in engines, pumps, compressors, etc. Nodular iron can be obtd. with mechanical properties similar to steel.
Patent DE-2904671-A1 (DE)
Title: Polymeric bromo-(meth)acrylate! derivs. - useful as flameproofing agents for plastic worked at high temps., e.g. styrene! (co)polymers
Inventor: JENKNER HERBERT DR
IPC: C08F20/22
Filed: 1979-02-08
Abstract: Polymers of (meth)acrylic esters of tribromophenyl-ethyl alcohols, pentabromophenylethyl alcohols of their mixtures are claimed. Used as flame proofing agents for plastics which are worked at high temps., e.g. satd. polyesters, styrene (co)polymers, esp. ABS, also polyolefins, polyamides, and polycarbonates. They may be used alone or admixed with synergistic cpds. such as Sb2O3. The polymers are prepd. by reacting styrene with HBr to form phenylethylbromide, which is nuclear-brominated to the tri- or pentabromophenyl ethyl bromide. These cpds. are then esterified with potassium (meth)acrylate and polymerised using a peroxide. The resulting polymer coarsely particulate and non-thixotropic, and coating to polypentabromophenylacrylate, is easily filtered.
Patent DE-2907894-A1 (DE)
Title: Touch operated switch unit - has domed spring material pressure plates supported by three tabs and with two contact tongues
Inventor: BURGETH HEINZ
IPC: H01H13/70
Filed: 1979-03-01
Abstract: The touch operated switch unit with more than one touch switch (1) on an insulating support (2), uses touch switches having a dish shaped circular spring member with three equally spaced radial tabs resting on contacts (6). Two further tongues projecting from an intermediate part of the spring member are forced down onto two other contact strips (8), forming counter contacts. These contact springs are coated with contact metal or alloy, pref. in the region of the contact tongues. The three equally spaced tabs fit into grooves (7) in the surface of the insulated support. The housing (15) can be attached to the support part by rivets, or snap action connectors. Instead of the support, a printed circuit board can be used.
Patent DE-2909898-A1 (DE)
Title: Clamp and support for overhead power cables - has side spring dampers and central support for cable with two insulator fastenings
Inventor: STRAUSS HERBERT ING GRAD
IPC: H02G7/20
Filed: 1979-03-14
Abstract: A clamp unit holds overhead power cables on the end of the insulator. The insulator support is a double-multi-unit type (1, 2) and the clamp has a top spacing bar (3, 4) which spans both insulator lower ends, fastening with hinge bolts (15) so that the entire insulator clamp unit hangs symmetrical. The clamp unit has side damper braces (11, 12) to prevent the cable and insulators swinging freely, thereby risking damage. The clamp comprises central spacer cross brace (3, 4) from the centre of which a support arm (8) is hinged (10) to carry the cable termination (9). The support arm (8) hangs between the side dampers (11, 12) and through a bottom bracket (7) which limits swing. The top cross brace (3, 4) is hinged to both the insulators (1, 2, 15) and directly below carries the side dampers (11, 12, 16). If one insulator breaks the side dampers maintain support by moving into a sharper bend or elongated form.
Patent DE-2913079-A1 (DE)
Title: Diesel engine with water injection - has injected water atomised but not evaporated to save energy and simplify system
Inventor: WANSCHURA ERNST
IPC: F02M25/022
Filed: 1979-04-02
Abstract: Water from a container is heated by indirect heat exchange with the engine cooling water. It passes to an atomiser which breaks it up into a fine mist with the aid of compressed air. The compressed air is supplied either by a compressor or from an air bottle. The water quantity is regulated by the atomiser which has a cable connection to the accelerator in order to vary the flow in proportion to the load. The atomiser injects the water mist into the suction manifold. The air flowing through the manifold is preheated by the engine radiator to prevent condensation of the spray.
Patent DE-2926107-A1 (DE)
Title: Removal of nitrogen oxide(s) from gas, esp. from waste gas - by contracting oxygen and water in the presence of cyanamide, halogen and sulphur cpds. are also removed
Inventor: QUI UMANN HEINRICH
IPC: B01D53/56
Filed: 1979-06-28
Abstract: The raw gas is treated to ensure that it contains at least the stoichiometric amts. of water (1H2O to 1NOx), and of oxygen, and is fed over a cyanamide, esp. calcium cyanamide. The cyanamide is pref. used as a suspension or soln. in water, esp. using 0.5-200g cyanamide per litre of water; and the removal of the NOx may occur in several stages. The raw gases are esp. waste gases arising in numerous combustion or industrial processes, e.g. in the mfr. of nitric acids or nitrates; in nitrogenation or diazotisation; the oxidn. of organic cpds. with nitric acid; or in pickling steels. Both NO and NO2 are quantitatively removed even when the initial gas has a low oxygen content; and the process is inexpensive.
Patent DE-2930842-A1 (DE)
Title: Magnetic valve with core in magnetic head - has valve set formed on annular member additionally formed on magnetic core
Inventor: STAIGER BRUNO
IPC: F16K31/06
Filed: 1979-07-30
Abstract: The magnetic head core (6) has a bore and a valve seat (9) at one front side for abutment by a seating stud, associated with the magnet armature. The valve seat is formed in an annular part also secured to the magnetic core. Pref. the annular part is mounted in a recess, formed in the core front side (8) with a widening portion of greater diameter than that of the valve seat. The recess may be cylindrical, or have a relieved part. Its diameter may be the same as that of the annular part and if a relieved part is provided, it may be conical. The annular part may be soldered to the magnetic core and it may be of brass. This design provides big precision, with narrow tolerances, both for the valve seat and the magnetic core front side.
Patent DE-2932196-A1 (DE)
Title: Long optical waveguide fibres - made by drawing very long blank obtd. by butt welding several short blanks together
Inventor: AULICH HUBERT DR
IPC: C03B37/012
Filed: 1979-08-08
Abstract: The fibre is drawn from a rod blank formed by butt welding a row of shorter rod blanks with a common axis. Each of the short blanks has the same core- and sheath-dia. Prior to welding, the ends of the short blanks are pref. ground the nominal dia. and cleaned, esp. in an ultrasonic bath using alcohol and water, then conc. HF, followed by water and finally acetone. The ends of the short blanks may also be flame polished. The short blanks are clamped in a jig for welding and, after welding the long rod is pref. heated and lightly drawn to make the blank. Method is inexpensive where several short blanks, e.g. 30 cm long are easily made and welded to make a long blank.
Patent DE-2946096-A1 (DE)
Title: Outside rear-view mirror for vehicle - has remotely-controlled electromotor adjusting angle and can be fitted to vehicles already in use
Inventor: KUHNEN WERNER
IPC: B60R1/07
Filed: 1979-11-15
Abstract: The rear view mirror has an electromotor coupled via a gear to the reflector and setting the angle of the reflector according to control signals initiated by the driver at the instrument panel. A cable connects the control switch on the instrument panel to the motor and to the power supply of the vehicle. The switch's connection points are located in an open casing which is also the space that holds at least one dry battery. The dry battery is independent of the main power supply. The casing has a wall with a hole for the cable and coinciding with a hole on the passenger-compartment side through which the cable also passes.
Patent DE-2948775-A1 (DE)
Title: Sand castings fettling and cooling drum - with annular sand screening section having specified configuration
Inventor: PRADEL WALTER
IPC: B22C5/08
Filed: 1979-12-04
Abstract: A plant for the continuous fettling and cooling of castings and for the cooling of the moulding sand includes a revolving drum with a charging area and a discharging area, fitted with a cylindrical screen. This screen is arranged in a section with a central discharge opening for the clean castings which has a diameter smaller than the max. inside diameter of the screening section but larger than the diameter of the neck upstream of the section. This ensures a break-up of the sand clumps in spite of the short screening section and the short overall drum length. This applies specially to green sand of the bentonite type and to core sand and facilitates the separate transport of the sand to a reconditioning plant.
Patent DE-3003031-A1 (DE)
Title: Low cost remote setting system for plant accessories in buildings - uses multifrequency selection channels and power bistables and may use group decoder
Inventor: MEIER URS
IPC: H04Q9/10
Filed: 1980-01-29
Abstract: The remote control system is mainly for plant in buildings and uses the same pair of electrical lines (S53) for power feed and selective control. An individual device (21) may be set by direct remote control with the aid of a device decoder (23); or, a number of devices may be grouped together and can be reached individually only via a group decoder. The power supply has a frequency different from any of the control signal frequencies; and may be direct current. A d.c to d.c converter (25) supplies the decoder circuit (23) whereas the signal currents pass through a capacitor (27). For e.g to lift a window blind a control frequency (f'sl) may be used to which one filter detector (29a,31a) responds; to lower the window blind, another frequency (f1,s2) is used to which another filter detector (29b,31b) responds. To stop the motor (21) both control frequencies must be present for a short time simultaneously. This resets both the bistables (37a and 37b).
Patent DE-3007839-A1 (DE)
Title: Video longitudinal recording and copying appts. - uses multiple tracked tape driven in one or alternate directions and corresp. reproducing heads
Inventor: PFEIFER JOSEF
IPC: H04N1/21
Filed: 1980-02-29
Abstract: The video longitudinal recording system using magnetic tape for storing images, can be used with a copying machine which may be remote controlled. The copies may then be reproduced by an ink or electrographic reproducing system. The appts. includes an electronic selection system for the stored images, which can be stored by a large number of tracks across the width of the tape which can be formed into an endless band. When the end of a track is reached, the band can be driven in the reverse direction. Multiple heads can be used to reproduce different sets of images from different tracks. Another system uses a single endless track and the tape is driven in one direction only. The reproducing head may have two sections to reproduce signals from two tracks containing picture information and mask information from which a composite image can be formed.
Patent DE-3008959-A1 (DE)
Title: Mine working machine spur rack sections mounting bracket - has suitably wide depression in trough for spur rack sections attachments
Inventor: KLIMECK HUGO
IPC: E21C29/02
Filed: 1980-03-08
Abstract: The bracket provides hinged mounting for a spur rack used for moving an underground mineral-extracting machine forward. Sections at both ends have bottom attachments engaging a lengthways bracket recess, with retention provided by a transverse bolt passing through a hole in one attachment and mounted in both bracket sidewalls. The bracket (1) is in trough form, with the cavity (2) holding the attachments (4) of adjacent spur rack sections (3) as wide as attachment thickness. The bracket sidewalls adjacent to the long face conveyor (8) is pref. located below the driving bars (7), and has serration (10) which does not hinder the machine driving wheel revolution, on the surface facing the driving bars. This is well adapted to cope with transverse forces which occur.
Patent DE-3014818-A1 (DE)
Title: Christmas tree stand with water trough - has trunk located by sleeve with fixing screws, centred in heavy container by radial spokes
Inventor: KREIS FRANZ
IPC: A47G33/12
Filed: 1980-04-17
Abstract: The Christmas tree stand has a concrete water trough (1) in which is a fixture for the end of the trunk. A ring (9) has locking screws, from which extend straight arms (3,4), radially to the inside wall of the water trough. The outer edges (5,6) of the free ends of the arms rest on a groove (2) in the inner periphery of the water trough. At least one of the arms can be altered in length by means of an adjusting screw (16).
Patent DE-3015201-A1 (DE)
Title: Hollow poppet valves for IC engines - with filling of molten alkali metal contg. copper powder for very efficient cooling of valve head
Inventor: WEINTZ RICHARD DIPL ING
IPC: F01L3/14
Filed: 1980-04-19
Abstract: The valve possesses a cavity which is filled with a metal (I) which is liq. at the operating temp. and is used to conduct heat away from the head of the valve to its shank. Metal (I) is mixed with a metal powder (II) which has a higher thermal conductivity than the liq. metal (I). Metal (I) pref. contains by vol. 5-95%, esp. 50% metal (II), which is pref. Cu, or fine-grained Cu contg. lanthanides. Metal (I) is pref. sodium; potassium; or an Na-K alloy contg. 77.8 vol.% K. Metal (I) is pref. also provided with an addn. (III) with a higher affinity than the valve metal, Na or K, to water, air, hydrocarbons, or the corrosion prods. of Na and K. Addn. (III) is pref. Ca; or when metal (I) contains Cu powder (II), the addn. is pref. CaC2 or CaH2. Used e.g. for the internal cooling of poppet exhaust valves. The invention provides better cooling than similar conventional methods using a liq.